# Time Calculation vs ADS

Time Calculation and ADS both sit at 2.0 stars, but that hides the real split: 33% of ADS's written reviews are positive against 0% of Time Calculation's. ADS also leads on update cadence (every 5 months vs every 42 months) and chart position (#197 vs unranked). Time Calculation's advantage is price ($1.99 vs $5.99) and iOS requirement (15.6 vs 26). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Time Calculation costs $1.99 and ADS $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 2.0 for Time Calculation against 2.0 for ADS. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 0% of Time Calculation's written reviews are positive against 33% of ADS's.

Time Calculation ships an update every 42 months, ADS every 5 months. The most recent releases landed on August 3, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Time Calculation | ADS |
| --- | --- | --- |
| Price | **$1.99** | $5.99 |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/time-calculation/id1449412502/reviews) | [2.0 (1 ratings)](https://appshunter.io/ios/app/ads-b/id6744751624/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 5 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#197** |
| Size | 0 MB | 7 MB |
| Requires iOS | **15.6** | 26 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [Jan Chalupa](https://appshunter.io/developer/1557529575) |

## What reviewers say

### Time Calculation

[App page](https://appshunter.io/ios/app/time-calculation/id1449412502)

Easily add and subtract time in hours and minutes without manual rounding. Copy calculation results and review past formulas with a history feature. Includes navigation and deletion tools for formula input.

**Highlights:** Add and subtract hours and minutes, Automatic minute rounding, Copy calculation results, View calculation history, Formula input navigation, Delete formula history

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ADS

[App page](https://appshunter.io/ios/app/ads-b/id6744751624)

**Currently charting:** #197 Top Paid · Utilities (US App Store)

Track thousands of aircraft in real-time with detailed flight information. View live positions on an interactive map, access aircraft details, and explore airport arrivals/departures. Ideal for aviation enthusiasts and plane spotters.

**Highlights:** Live flight positions on interactive map, Detailed aircraft information, Flight history and predicted paths, Filter by aircraft type, altitude, and distance, Airport information and arrivals/departures, Apple Watch app

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Time Calculation free?

Time Calculation costs $1.99, with no in-app purchases.

### Is ADS free?

ADS costs $5.99, with no in-app purchases.

### Which has better reviews, Time Calculation or ADS?

Time Calculation and ADS are both rated 2.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Time Calculation or ADS have ads?

Neither Time Calculation nor ADS shows ads.

### Which is updated more often, Time Calculation or ADS?

Time Calculation ships an update every 42 months, and ADS every 5 months. Most recently, Time Calculation was updated on August 3, 2026 and ADS on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*